Extension bracket



FIG. 1 is a perspective right view of the extension bracket showing my new design;

FIG. 2 is a perspective left view of the extension bracket thereof;

FIG. 3 is a right side view of the of the extension bracket thereof;

FIG. 4 is a left side view of the of the extension bracket thereof;

FIG. 5 is a front view of the extension bracket thereof;

FIG. 6 is a back view of the of the extension bracket thereof;

FIG. 7 is a bottom view of the extension bracket thereof; and,

FIG. 8 is a top view of the extension bracket thereof. 

The ornamental design for an extension bracket, as shown and described. 